fix(eip712): signature-request display fixes + core address Key decoding

[ost-ptk]

What

EIP-712 signature-request display fixes (WALLET-1251) from QA re-test, plus the casper-wallet-core bump that carries the address Key-decoding and date logic.

Changes

• formatPrimaryTypeLabel splits the camelCase primaryType so the message header reads "TRANSFER WITH AUTHORIZATION" instead of an unreadable run-on word.
• Hash values (nonce, raw package hash) render blue with a copy icon.
• Bump casper-wallet-core to pick up: EIP-712 address values decoded as Casper Keys (a contract package address is no longer shown as a "Public key"), timestamp dates + sentinels ("Always" / "No expiry"), and CAIP-2 chain names.

Notes

• Display correctness is driven by core; the wallet renders the prepared rows (package -> contract row, account -> account row, dates -> text). No additional wallet UI code was needed for the address fix.
• Based on eip712-naming-alignment (PR refactor(eip712): align signTypedData onto signTypedDataEIP712 convention #1360); retarget to develop once that merges.

Depends on

• casper-wallet-core PR feat(eip712): decode address as Casper Keys, date presentation & CAIP-2 casper-wallet-core#51 (the bumped commit lives on that branch; re-bump to the merge commit after it lands).

[Comp0te]

formatPrimaryTypeLabel throws a TypeError on separator-only input.

After .replace(/[_-]+/g, ' ')…trim(), an input made up only of separators/whitespace reduces to '', and ''.split(' ') yields [''] — so capitalizeString('') runs ''[0].toUpperCase() → undefined.toUpperCase() and throws. The early if (!value) guard only catches empty/undefined, not '_' / '__' / '-' / ' '.

"_"   => THROWS: Cannot read properties of undefined (reading 'toUpperCase')
"__"  => THROWS: ...
"   " => THROWS: ...

This is reachable from untrusted input: primaryType is a dapp-supplied string (SignTypedDataParams.primaryType: string) passed straight to formatPrimaryTypeLabel(signatureRequest.primaryType) in sign-eip712-content.tsx with no wallet-side validation. _ is a valid EIP-712 / Solidity type identifier, so a dapp can send primaryType: "_" and crash the signature-request render.

Suggested fix — drop empty segments after the split:

    .split(' ')
    .filter(Boolean)
    .map(word => capitalizeString(word))
    .join(' ');

[ost-ptk]

Good catch — fixed in 8580c2d. Added .filter(Boolean) after the split to drop empty segments, plus a regression test covering "_", "__", "-" and " " (all now return "" instead of throwing).